We're dividing 51154562 by 786 
We want to divide 51154562 by 786.

Step 1:
If we divide 5 by 786, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 786

Step 2:
786 can be fit into 51 0 times, resulting in a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Grab the next digit (1) from the dividend, add it to 51, then carry on: 511 / 786

Step 3:
If we divide 511 by 786, we get 0 and a remainder of 511.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 511, we get 511.
Include the next digit (5) from the dividend after 511, then repeat: 5115 / 786

Advancing to step 4:
5115 divided by 786 is 6 with a remainder of 399.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
The remainder is 399 after subtracting 4716 from 5115.
Include the next digit (4) from the dividend after 399, then repeat: 3994 / 786

Moving on to step 5:
When dividing 3994 by 786, we get 5 with a remainder of 64.
The number 5 becomes the next digit in our result. 
Result so far: 65.0
Subtracting 3930 from 3994 leaves us with 64.
Grab the next digit (5) from the dividend, add it to 64, then carry on: 645 / 786

On to step 6:
645 divided by 786 is 0 with a remainder of 645.
Put 0 as the next digit of the answer. 
Result so far: 650.0
Deduct 0 from 645 and we're left with 645.
Include the next digit (6) from the dividend after 645, then repeat: 6456 / 786

Advancing to step 7:
The number 786 fits into 6456 8 times, leaving a remainder of 168.
The number 8 becomes the next digit in our result. 
Result so far: 6508.0
If we take 6288 away from 6456, we end up with 168.
Append the next digit (2) from the dividend to 168 and continue with: 1682 / 786

Advancing to step 8:
1682 divided by 786 is 2 with a remainder of 110.
The number 2 becomes the next digit in our result. 
Result so far: 65082.0
If we subtract 1572 from 1682, we get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 9:
The number 786 fits into 1100 1 times, leaving a remainder of 314.
The number 1 becomes the next digit in our result. 
Result so far: 65082.1
Subtracting 786 from 1100 leaves us with 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Let's proceed to step 10:
786 can be fit into 3140 3 times, resulting in a remainder of 782.
Write down 3 as next digit of the result. 
Result so far: 65082.13
If we take 2358 away from 3140, we end up with 782.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7820, and continue the process.

Let's proceed to step 11:
If we divide 7820 by 786, we get 9 and a remainder of 746.
Write down 9 as next digit of the result. 
Result so far: 65082.139
Subtract 7074 from 7820 to get 746.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7460, and continue the process.

Going ahead to step 12:
If we divide 7460 by 786, we get 9 and a remainder of 386.
Use 9 as the next digit of our solution. 
Result so far: 65082.1399
Subtract 7074 from 7460 to get 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

The quotient of the division is 65082.1399, and the remainder is 0.00386.